Weapons-Grade Plutonium Consists of 93% Pu-239 239

question 64

Multiple Choice

Weapons-grade plutonium consists of 93% Pu-239 239.0522 amu) , with the remainder being Pu-40 (240.0538 amu) .What is the average atomic mass of this sample of weapons-grade plutonium? Assume the percentages are exact.

• A)239.5530 amu
• B)239.1223 amu
• C)239.0522 amu
• D)239.9478 amu
• E)239.9822 amu

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